Roby Sawyers. (2020). Federal Tax Research, 12th Edition (12th edition.). Cengage Learning.
Cita Chicago Style (17a ed.)Roby Sawyers. Federal Tax Research, 12th Edition. 12th edition. United States of America: Cengage Learning, 2020.
Cita MLA (8a ed.)Roby Sawyers. Federal Tax Research, 12th Edition. 12th edition. Cengage Learning, 2020.
Precaución: Estas citas no son 100% exactas.